Mechanisms and consequences of intra-crystalline enrichment of ancient radiogenic Pb in detrital Hadean zircons from the Jack Hills, Western Australia
Sign Up to like & getrecommendations! Published in 2019 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2019.04.005
Abstract: Abstract The recent discovery of Pb* (radiogenic lead)-enriched domains (PEDs) in zircon using high-resolution scanning ion imaging, atom probe tomography and transmission electron microscopy indicates that the U-Pb isotopic system in zircon can be affected… read more here.
Keywords: crystalline enrichment; western australia; intra crystalline; hills western ... See more keywords
A comparison between zircons from the Acasta Gneiss Complex and the Jack Hills region
Sign Up to like & getrecommendations! Published in 2020 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2019.115975
Abstract: Abstract The composition and origin of the earliest continental crust is intensely debated. The understanding of its composition relies heavily on the oldest vestiges of continental crust, which includes detrital zircon grains that are up… read more here.
Keywords: acasta gneiss; complex jack; comparison zircons; gneiss complex ... See more keywords
The effect of weathering on U-Th-Pb and oxygen isotope systems of ancient zircons from the Jack Hills, Western Australia
Sign Up to like & getrecommendations! Published in 2017 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2016.10.005
Abstract: Abstract We report the result of a SIMS U–Th–Pb and O–OH study of 44 ancient zircons from the Jack Hills in Western Australia with ages ranging from 4.3 Ga to 3.3 Ga. We have investigated the behaviour… read more here.
Keywords: oxygen; western australia; group; ancient zircons ... See more keywords
New constraints on the Hadean to Proterozoic history of the Jack Hills belt, Western Australia
Sign Up to like & getrecommendations! Published in 2018 at "Gondwana Research"
DOI: 10.1016/j.gr.2017.11.008
Abstract: Abstract A 1010 m traverse line on the eastern flank of Eranondoo Hill was mapped and sampled in detail, crossing the entire width of the Jack Hills supracrustal belt, Western Australia. The facies associations indicate a… read more here.
Keywords: zircon; western australia; belt western; ehf values ... See more keywords
Direct age constraints on the magnetism of Jack Hills zircon
Sign Up to like & getrecommendations! Published in 2023 at "Science Advances"
DOI: 10.1126/sciadv.add1511
Abstract: A potential record of Earth’s magnetic field going back 4.2 billion years (Ga) ago is carried by magnetite inclusions in zircon grains from the Jack Hills. This magnetite may be secondary in nature, however, meaning… read more here.
Keywords: constraints magnetism; jack; age constraints; direct age ... See more keywords
Secondary magnetic inclusions in detrital zircons from the Jack Hills, Western Australia, and implications for the origin of the geodynamo
Sign Up to like & getrecommendations! Published in 2018 at "Geology"
DOI: 10.1130/g39938.1
Abstract: The time of origin of Earth’s dynamo is unknown. Detrital zircon crystals containing ferromagnetic inclusions from the Jack Hills of Western Australia have the potential to contain the oldest records of the geodynamo. It has… read more here.
Keywords: western australia; detrital zircons; secondary magnetic; hills western ... See more keywords